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From:   Ping-Ke Shih <pkshih@realtek.com>
To:     <kvalo@kernel.org>
CC:     <phhuang@realtek.com>, <kevin_yang@realtek.com>,
        <linux-wireless@vger.kernel.org>
Subject: [PATCH v6 4/5] wifi: rtw89: add flag check for power state
Date:   Tue, 11 Apr 2023 20:48:31 +0800
Message-ID: <20230411124832.14965-5-pkshih@realtek.com>
In-Reply-To: <20230411124832.14965-1-pkshih@realtek.com>
References: <20230411124832.14965-1-pkshih@realtek.com>
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From: Po-Hao Huang <phhuang@realtek.com>

Use POWER_ON flag to make sure power on/off is symmetric. Since both
remain_on_channel and hw_scan both alter the power state, this makes
sure that we don't enter/leave IPS mode twice.
Also, replace IPS related functions with inline function that does
similar logic so we can track it more easily.

Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
v6: no change
v5: no change
---
 drivers/net/wireless/realtek/rtw89/core.c | 7 +++----
 drivers/net/wireless/realtek/rtw89/ps.c   | 6 ++++++
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c
index 30a5ab5e48b1e..72124d6c29689 100644
--- a/drivers/net/wireless/realtek/rtw89/core.c
+++ b/drivers/net/wireless/realtek/rtw89/core.c
@@ -2207,8 +2207,7 @@ static void rtw89_ips_work(struct work_struct *work)
 	struct rtw89_dev *rtwdev = container_of(work, struct rtw89_dev,
 						ips_work);
 	mutex_lock(&rtwdev->mutex);
-	if (rtwdev->hw->conf.flags & IEEE80211_CONF_IDLE)
-		rtw89_enter_ips(rtwdev);
+	rtw89_enter_ips_by_hwflags(rtwdev);
 	mutex_unlock(&rtwdev->mutex);
 }
 
@@ -3501,8 +3500,8 @@ void rtw89_core_scan_start(struct rtw89_dev *rtwdev, struct rtw89_vif *rtwvif,
 
 	rtwdev->scanning = true;
 	rtw89_leave_lps(rtwdev);
-	if (hw_scan && (rtwdev->hw->conf.flags & IEEE80211_CONF_IDLE))
-		rtw89_leave_ips(rtwdev);
+	if (hw_scan)
+		rtw89_leave_ips_by_hwflags(rtwdev);
 
 	ether_addr_copy(rtwvif->mac_addr, mac_addr);
 	rtw89_btc_ntfy_scan_start(rtwdev, RTW89_PHY_0, chan->band_type);
diff --git a/drivers/net/wireless/realtek/rtw89/ps.c b/drivers/net/wireless/realtek/rtw89/ps.c
index 40498812205ea..cf72861c7adcd 100644
--- a/drivers/net/wireless/realtek/rtw89/ps.c
+++ b/drivers/net/wireless/realtek/rtw89/ps.c
@@ -155,6 +155,9 @@ void rtw89_enter_ips(struct rtw89_dev *rtwdev)
 
 	set_bit(RTW89_FLAG_INACTIVE_PS, rtwdev->flags);
 
+	if (!test_bit(RTW89_FLAG_POWERON, rtwdev->flags))
+		return;
+
 	rtw89_for_each_rtwvif(rtwdev, rtwvif)
 		rtw89_mac_vif_deinit(rtwdev, rtwvif);
 
@@ -166,6 +169,9 @@ void rtw89_leave_ips(struct rtw89_dev *rtwdev)
 	struct rtw89_vif *rtwvif;
 	int ret;
 
+	if (test_bit(RTW89_FLAG_POWERON, rtwdev->flags))
+		return;
+
 	ret = rtw89_core_start(rtwdev);
 	if (ret)
 		rtw89_err(rtwdev, "failed to leave idle state\n");
-- 
2.25.1